Finite Element Analysis of Acoustic Performance of Three-pass Perforated Duct Mufflers
The finite element method is used to predict and analyze the acoustic attenuation performance of three-pass perforated duct mufflers. For a prototype three-pass perforated duct muffler, the transmission loss predictions from finite element, method agree well with experimental results, which demonstrated the applicability and accuracy of the finite element method. The finite element method is then employed to investigate the acoustic attenuation performance of three-pass perforated muffler with end-resonator, which is expected to improve the low frequency noise attenuation of the typical three-pass perforated duct muffler. The effects of geometrical parameters of the end-resonator on the acoustic attenuation performance of the muffler are examined in detail.
Su Shengli Ji Zhenlin
College of Power and Energy Engineering, Harbin Engineering University
国际会议
2007年(中国内燃机学会第六届学术年会暨国际内燃机学术研讨会和第六届中国国际内燃机及制造装备展览会)两会一展国际学术会议
上海
英文
249-252
2007-10-09（万方平台首次上网日期，不代表论文的发表时间）